In each of the following expressions, c represents the original cost of an item

i . 0.90c
i . 0.10c
i . c- 0.10c

circle the expressions that represent 10% of the original cost. if more than one answer is correct, explain why expressions you use are equivalent.

Students are given 3 minutes for each multiple-choice question and 5 minutes for each free-response question on a test. there are 15 questions on the test, and students are given 51 minutes to take it.how many multiple-choice questions are on the test?

What is the length of the segment joining the points at (4,5) and (6,-2) round to the nearest tenth if necessary

Bella want to know what the students at her school think of her show. which is the best group to survey to find this information a. go to the mall and ask all of the students she recognizes from school b. ask her viewers to call in durning an episode of the show c. get a list of students at her school from the office and use a random number generator to pick 30 of them d. get a list of students at her school from the office and pick the first 30 students on the list